diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2013-08-19 15:39:19 +0400 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-08-21 11:28:29 +0400 |
| commit | 1ddff7da0faecffdcdeab3d981fb8241453cea44 (patch) | |
| tree | 7388e85b2a844917fe3103c47bdb044799fba95f /arch/arm/mach-pxa | |
| parent | 954c396756e3d31985f7bc6a414a988a4736a7d0 (diff) | |
| download | linux-1ddff7da0faecffdcdeab3d981fb8241453cea44.tar.xz | |
can: mcp251x: Replace power callbacks with regulator API
This patch replaces power callbacks to the regulator API. To improve
the readability of the code, helper for the regulator enable/disable
was added.
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-pxa')
| -rw-r--r-- | arch/arm/mach-pxa/icontrol.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/zeus.c | 46 |
2 files changed, 25 insertions, 24 deletions
diff --git a/arch/arm/mach-pxa/icontrol.c b/arch/arm/mach-pxa/icontrol.c index fe31bfcbb8df..c98511c5abd1 100644 --- a/arch/arm/mach-pxa/icontrol.c +++ b/arch/arm/mach-pxa/icontrol.c @@ -73,9 +73,6 @@ static struct pxa2xx_spi_chip mcp251x_chip_info4 = { static struct mcp251x_platform_data mcp251x_info = { .oscillator_frequency = 16E6, - .board_specific_setup = NULL, - .power_enable = NULL, - .transceiver_enable = NULL }; static struct spi_board_info mcp251x_board_info[] = { diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c index f5d436434566..04a0aea23873 100644 --- a/arch/arm/mach-pxa/zeus.c +++ b/arch/arm/mach-pxa/zeus.c @@ -29,6 +29,8 @@ #include <linux/i2c/pca953x.h> #include <linux/apm-emulation.h> #include <linux/can/platform/mcp251x.h> +#include <linux/regulator/fixed.h> +#include <linux/regulator/machine.h> #include <asm/mach-types.h> #include <asm/suspend.h> @@ -391,33 +393,34 @@ static struct pxa2xx_spi_master pxa2xx_spi_ssp3_master_info = { }; /* CAN bus on SPI */ -static int zeus_mcp2515_setup(struct spi_device *sdev) -{ - int err; - - err = gpio_request(ZEUS_CAN_SHDN_GPIO, "CAN shutdown"); - if (err) - return err; +static struct regulator_consumer_supply can_regulator_consumer = + REGULATOR_SUPPLY("vdd", "spi3.0"); - err = gpio_direction_output(ZEUS_CAN_SHDN_GPIO, 1); - if (err) { - gpio_free(ZEUS_CAN_SHDN_GPIO); - return err; - } +static struct regulator_init_data can_regulator_init_data = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .consumer_supplies = &can_regulator_consumer, + .num_consumer_supplies = 1, +}; - return 0; -} +static struct fixed_voltage_config can_regulator_pdata = { + .supply_name = "CAN_SHDN", + .microvolts = 3300000, + .gpio = ZEUS_CAN_SHDN_GPIO, + .init_data = &can_regulator_init_data, +}; -static int zeus_mcp2515_transceiver_enable(int enable) -{ - gpio_set_value(ZEUS_CAN_SHDN_GPIO, !enable); - return 0; -} +static struct platform_device can_regulator_device = { + .name = "reg-fixed-volage", + .id = -1, + .dev = { + .platform_data = &can_regulator_pdata, + }, +}; static struct mcp251x_platform_data zeus_mcp2515_pdata = { .oscillator_frequency = 16*1000*1000, - .board_specific_setup = zeus_mcp2515_setup, - .power_enable = zeus_mcp2515_transceiver_enable, }; static struct spi_board_info zeus_spi_board_info[] = { @@ -516,6 +519,7 @@ static struct platform_device *zeus_devices[] __initdata = { &zeus_leds_device, &zeus_pcmcia_device, &zeus_max6369_device, + &can_regulator_device, }; /* AC'97 */ |